1. Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering; Doshisha University; Kyotanabe, Kyoto 610-0321 Japan
2. Present Address: Faculty of Natural System, Institute of Science and Engineering; Kanazawa University; Kanazawa, Ishikawa 920-1192 Japan
3. Department of Applied Chemistry, Graduate School of Science and Engineering; Doshisha University; Kyotanabe, Kyoto 610-0321 Japan